CN104955617B - Apparatus for fastening - Google Patents
Apparatus for fastening Download PDFInfo
- Publication number
- CN104955617B CN104955617B CN201380071484.2A CN201380071484A CN104955617B CN 104955617 B CN104955617 B CN 104955617B CN 201380071484 A CN201380071484 A CN 201380071484A CN 104955617 B CN104955617 B CN 104955617B
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- China
- Prior art keywords
- fastening
- clamp arm
- clamp
- main body
- arm
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- 239000012530 fluid Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 43
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000002708 enhancing effect Effects 0.000 abstract description 39
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/04—Clamps with pivoted jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
- B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
- B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Automatic Assembly (AREA)
- Actuator (AREA)
Abstract
A kind of apparatus for fastening (10), equipped with：First and second clamp arms (14,16), first and second clamp arm (14,16) is rotatably supported relative to main body (12)；With driver element (18), with a pair first and second pistons (44,46), first and second piston (44,46) is shifted the driver element (18) under the supply of pressure fluid.The driving force of driver element (18) is transferred to the first and second clamp arms (14 via knuckle joint (74), 16), the knuckle joint (74) is connected to the first and second piston rods (48,50), power strengthens bar (78) and link arm (38).The length ratio that power enhancing bar (78) is formed as from supporting pin (86) towards knuckle joint (74) is longer towards the length of link arm (38) from supporting pin (86).
Description
Technical field
The present invention relates to a kind of apparatus for fastening, the apparatus for fastening is used for piece-holder in automatic assembly line etc..
Background technology
So far, for example, in the automatic assembly line of automobile, assembly technology is performed, wherein, in preformed framework
In a superimposed manner place and framework be welded together in the state of clamping is performed by apparatus for fastening.
For the apparatus for fastening of this type, for example, as disclosed in Japan Patent No.4950123, the apparatus for fastening includes one
To clamp arm, the clamp arm is arranged respectively on left and right sides, and clamp arm is rotatably configured by respective pin.Clamp
Arm is pivotally supported proximally by bottom, and the bottom is connected to driver element, so that the distal end of clamp arm can be grasped
Make to open and close.The workpiece of such as framework etc. can be clamped by a pair of distal ends of clamp arm from its left and right sides.
The content of the invention
However, according to above-mentioned apparatus for fastening, the original state for being clamped arm startup from the clamping of workpiece is complete to workpiece
The clamp position of clamping, chucking power is changed in gradually increased mode, therefore, the chucking power for putting on workpiece is easy to unstable.
Therefore, the demand in the art to apparatus for fastening technology is workpiece is clamped in the chucking power of clamping whole process stabilization,
The whole process of the clamping is the state for clamping completely that the original state since piece-holder is clamped completely to workpiece.
Catalogue of the invention is to provide a kind of apparatus for fastening with simple structure, and the apparatus for fastening can be complete in clamping
Cheng Liyong virtually constant chucking power stably clamping workpiece, the clamping whole process be original state since piece-holder to
The complete clamp position that workpiece is clamped completely, while it is smaller also to allow equipment to be made size.
The present invention provides a kind of apparatus for fastening, and the apparatus for fastening is used to rotate a pair of clamp arms, so as to Workpiece clamping be existed
Between clamp arm, the apparatus for fastening includes：
Main body；
Driver element, the driver element is configured in main body and the displaceable structure including that can be shifted along axis direction
Part；
A pair of clamp arms, a pair of clamp arms are rotatably supported relative to main body, and the clamp arm is with facing with each other
Relation is configured；With
Driving force transmission mechanism, the driving force transmission mechanism includes transmission pole, and the transmission pole is used to connect the end of clamp arm
The end of portion and displaceable component, and the driving force transmission mechanism via transmission pole by along the axis direction of driver element
Driving force is transferred to clamp arm, so as to rotate clamp arm；
Wherein, the transmission pole is rotatably supported relative to main body, and one end of each transmission pole is connected to displaceable structure
One in part, and its another end is connected in clamp arm, so as to from the Support Position relative to main body to one
End distance in a longitudinal direction is longer than the distance from Support Position to the other end in a longitudinal direction.
According to the present invention, in the driving force transmission mechanism of composition apparatus for fastening, transmission pole is set, and the transmission pole is connected
The end of the displaceable component being connected in driver element, and the end of clamp arm, and transmission pole are connected to relative to main body quilt
It is pivotably supported.Further, the Support Position from one end of each transmission pole to it in main body in a longitudinal direction away from
From being arranged to longer with a distance from a longitudinal direction than being connected to the other end of clamp arm from Support Position to it.
Transmission pole is formed the length of a side of the Support Position relative to transmission pole than relative to Support Position
The length of another side is longer.Therefore, when the displacement by the displaceable component under the driving effect of driver element, driving force
It is transferred to the end of clamp arm by transmission pole, and clamp arm, when being rotated to clamping workpiece, driving force is enhanced and corresponds to
Length than amount, be then communicated to clamp arm.
Therefore, even if small from the driving force of driver element output, driving force is improved by using transmission pole, workpiece also can
It is clamped with desired clamping force.Further, can be made size smaller for driver element such that it is able to reduces apparatus for fastening
Size.
When being described with reference to the drawings, during above-mentioned and other purpose of the invention, feature and advantage will be set forth in the description which follows
Become readily apparent from, preferred embodiment of the invention is shown as illustrative example by accompanying drawing.
Brief description of the drawings
Fig. 1 is the global sections figure of apparatus for fastening according to an embodiment of the invention；
Fig. 2 is the amplification sectional view near driving force transmission mechanism in the apparatus for fastening of Fig. 1；
Fig. 3 is the global sections figure in the apparatus for fastening of Fig. 1 under non-clamp position；
Fig. 4 A to 4C are the operation diagrams of the operation for describing driving force transmission mechanism；With
Fig. 5 A to 5C are operation diagram of the description according to the operation of the driving force transmission mechanism of modification.
Specific embodiment
As shown in Figures 1 to 3, apparatus for fastening 10 is included：Main body 12；A pair first and second clamp arms 14,16, this pair
One and second clamp arm 14,16 relative to main body 12 rotatably by pivotal support；Driver element 18, the driver element 18 is consolidated
Surely main body 12 is arrived；With driving force transmission mechanism 20, the driving force of driver element 18 is transferred to by the driving force transmission mechanism 20
One and second clamp arm 14,16.
Main body 12 is made up of the plate shape bottom 22 flatly arranged and a pair of board members 24, and a pair of board members 24 divide mutually
Every preset distance, and it is connected respectively to the opposite flank of bottom 22.Board member 24 is vertically configured relative to bottom 22, and
And it is formed that there is predetermined altitude in upward direction (direction of arrow A).Further, bottom 22 is disposed in such as bottom surface
Or the like on, and apparatus for fastening 10 is fixed to bottom 22 by using unaccounted screw etc. and is mounted in place.
Further, on the upper part of main body 12, top plate portion 26 is configured, and the top plate portion 26 is connected to a pair of board members
24 end.Top plate portion 26 is vertically arranged relative to the bearing of trend (direction of arrow A and B) of board member 24, and quilt
It is arranged in the substantial centre on width (direction of arrow C and D) in main body 12.More specifically, top plate portion 26 is configured
Into substantial parallel with bottom 22.On top plate portion 26, pockets 28 respectively with the first and second clamp arm 14 described later,
16 relations for facing are formed on side, and when workpiece W is clamped by apparatus for fastening 10, workpiece W is disposed in top plate portion
On 26 top surface.
First and second clamp arms 14,16 are formed substantially the same shape, and are arranged in by mutually symmetrical with
Around driver element 18, and it is further configured between a board member 24 and another board member 24.In addition, the first He
Second clamp arm 14,16 is rotatably supported in main body 12 by arm pin (support shaft) 30, and the arm pin is in its longitudinal direction
On substantial centre be inserted into the first and second clamp arms 14,16.
The section of the first and second clamp arms 14,16 is L-shaped, with forked yoke portion 32 and clamping section 34, the forked yoke portion
32 are formed on it is arranged on the side of bottom 22 on (in the direction of arrowb) its end, i.e. a side, and the clamping section 34 is used
In clamping workpiece W and other ends are respectively formed at, the clamping section 34 essentially vertically bends relative to a side.
The end of link arm 38 is pivotally supported on the end in yoke portion 32 via the first attachment pegs 36.
Clamping section 34 is formed for example have section substantially rectangular in shape, and its clamping face quilt for facing each other
Be formed as the vertical plane of the longitudinal direction substantially parallel to the first and second clamp arms 14,16.
Further, arm pin 30 is inserted into the first He by its hole respectively in another side relative to the position of an end side bent
Second clamp arm 14,16.The two ends of arm pin 30 are supported by a pair of board members 24, and the first and second clamp arms 14,16 quilts
Pivotally support, rotated with around arm pin 30.In the lower section of clamping section 34, location division 40 is respectively formed, and the location division is relative
Protruded in the clamping face of clamping section 34.The first and second clamp arms 14,16 are close to each other and during clamping workpiece W and clamp
When, location division 40 engages with the pockets 28 of top plate portion 26 respectively.
In the first and second clamp arms 14,16, as shown in figure 1, first is set to L1 apart from L1 and second distance L2
Ratio with L2 is equal to predetermined ratio (length ratio), and second distance L2 is set to be greater than first apart from L1 (L1<L2), should
First apart from the distance that L1 is the centre of the clamping region of workpiece W from arm pin 30 to clamping section 34, second distance L2 be from
The distance of the 30 to the first attachment pegs of arm pin 36.
Driver element 18 is arranged between a pair of board members 24, and is flatly configured and separated relative to bottom 22 pre-
Set a distance.Driver element 18 includes：Fluid pressure cylinder, the fluid pressure cylinder includes cylindrical shape cylinder barrel (cylinder main body) 42；A pair
One and second piston (displaceable component) 44,46, first and second piston 44,46 is displaceably configured in cylinder barrel 42
Portion；First and second piston rods (displaceable component) 48,50, first and second piston rod 48,50 is connected respectively to first
With second piston 44,46；With the first and second rod sets 52,54, first and second rod set 52,54 configuration is in the respective of cylinder barrel 42
Opposite end on, and displaceably support the first and second piston rods 48,50 respectively.
The both ends of cylinder barrel 42 are fixed to board member 24 via attachment leg 55 by fixing bolt 57.In addition, first
It is formed on the side of cylinder barrel 42 to the 3rd port 56,58,60, first to the 3rd port 56,58,60 is perpendicular to cylinder barrel
Run through on the direction (arrow A, B are represented) of 42 axis direction.So as to be realized via the first to the 3rd port 56,58,60
Connection between the outside and inside of cylinder barrel 42.
First port 56 configures the centre on the axis direction (direction of arrow C and D) of cylinder barrel 42, and second port 58 is matched somebody with somebody
The adjacent one end of the cylinder barrel 42 in the side of the first clamp arm 14 (in the direction of arrow c) is put, and the 3rd port 60 is configured
Near the other end of the cylinder barrel 42 of the side of two clamp arm 16 (in the direction of arrow D).More specifically, the first to the 3rd port 56,
58th, 60 it is separated from each other on the axis direction (direction of arrow C and D) of cylinder barrel 42.
In addition, pipe 64 is connected to the first to the 3rd port 56,58,60 by each hookup 62, the pipe 64 is connected
To unaccounted pressure fluid source of supply.Pressure fluid is selectively supplied under the switching effect of unaccounted switching device
To first port 56 or second and the 3rd port (can be with nominal as second port) 58,60.Pipe 64 is connected to second and
Three ports 58,60 such that it is able to while to its supply pressure fluid.
First and second pistons 44,46 are plate-likes, for example, having piston ring 66, the piston ring 66 is via annular groove
It is installed on its outer peripheral face.By the sliding contact of piston ring 66 and the internal face of cylinder barrel 42, cylinder barrel 42 and first and second
The leakage of the pressure fluid between piston 44,46 is prevented from.
In addition, first piston 44 is placed along a side of the centre of the axis direction of cylinder barrel 42 (in the side of arrow C
To) on, and second piston 46 is placed along the another side (in the direction of arrow D) of the centre of the axis direction of cylinder barrel 42
On.More specifically, first piston 44 and second piston 46 are abreast configured in the inside of cylinder barrel 42, and be arranged in respectively with
One end of cylinder barrel 42 and the other end separate the position of same distance.
The end of the first and second piston rods 48,50 be inserted through respectively the centre of the first and second pistons 44,46 and
First and second pistons 44,46 are integrally connected to by crimping.Inserted other ends of first and second piston rods 48,50
Enter the first and second rod sets 52,54, and from one end of cylinder barrel 42 and the other end be projected into outside respectively.In other words, first
Piston rod 48 and second piston bar 50 extend mutually on direction away from each other.
After the insertion cylinder barrel 42 of the first and second rod set 52,54, the first and second rod sets 52,54 are locked by lock ring 68
Tightly, first and second rod set 52,54 is placed with and is engaged with the inner peripheral surface of cylinder barrel 42.By installed in the first and second rod sets
52nd, the outer peripheral face sliding contact of the piston rod 48,50 of bar sealing ring 70 and first and second on 54 inner peripheral surface, prevents the first He
The leakage of pressure fluid between second piston bar 48,50 and the first and second rod sets 52,54.
Further, in the first and second rod sets 52,54, annular damper 72 is arranged on its end face, the end face face
Protruded slightly outwards from the end face of the first and second rod sets 52,54 to the first and second pistons 44,46, and damper 72.When
First and second pistons 44,46 be respectively facing the first and second rod set 52,54 move when, the first and second pistons 44,46 against
By the damper 72 that for example rubber elastomeric material is made, so as to buffer due to against the impact for causing.
Driving force transmission mechanism 20 is included：A pair of knuckle joints (engagement member) 74, the knuckle joint is connected to first
With other ends of second piston bar 48,50；A pair of power strengthen bar (transmission pole) 78, and power enhancing bar passes through the second attachment pegs
76 are pivotally supported knuckle joint 74；With a pair of link arms 38, a pair of link arms 38 are pivotally supported at power to be strengthened
Between the end of the clamp arm 14,16 of bar 78 and first and second.
Knuckle joint 74 is formed bulk, and comprising：Screwed hole 80, the first and second piston rods 48,50 are by screw thread
It is joined in the screwed hole；Connection groove 82, the second attachment pegs 76 are inserted into the connection groove 82.Connection groove 82 has ellipse
Toroidal, the elliptical shape extends along the vertical direction (direction of arrow A and B) of the bearing of trend perpendicular to screwed hole 80.
Further, each in the region of the knuckle joint 74 comprising connection groove 82 is formed with bifurcated or branch
Shape, and each power enhancing bar 78 one end be inserted into wherein.
In addition, distinguishing spiral shell by by the screwed hole 80 of the other end of the first and second piston rods 48,50 and knuckle joint 74
Line is engaged, knuckle joint 74 near and direction away from cylinder barrel 42 on the displacement together with the first and second piston rods 48,50.
Each power enhancing bar 78 is formed as the writing board shape with predetermined length in a longitudinal direction.Second attachment pegs
(pin) 76 is pivotally supported on one end of each power enhancing bar 78, and the second attachment pegs 76 are inserted into each hinge-connection
First 74 connection groove 82, so that power enhancing bar 78 is rotatably supported relative to knuckle joint 74.
Further, the 3rd attachment pegs 84 are inserted into power strengthens the other end of bar 78, therefore via the 3rd attachment pegs 84
The other end is connected to the end of link arm 38.Thus, power enhancing bar 78 the other end be supported for it is relative relative to link arm 38
Rotation.
Further, supporting pin 86 is inserted into the through hole in power enhancing bar 78, the position between its one end and the other end
Put, the supporting pin 86 is supported by a pair of board members 24.Thus, power enhancing bar 78 is configured to be revolved around supporting pin 86
Turn, the supporting pin 86 strengthens the fulcrum of bar 78 as power.
In power enhancing bar 78, as shown in figure 1, from the attachment pegs of supporting pin 86 to the second 76 along power enhancing bar 78
The 3rd of longitudinal direction is apart from L3, and the 4th being set apart from L4 in a longitudinal direction from supporting pin 86 to the 3rd attachment pegs 84
Into：The ratio of L3 and L4 is equal to predetermined ratio (length ratio), and the 3rd is set to be greater than the 4th apart from L4 (L3 apart from L3>
L4)。
In addition, the first and second piston rods 48,50 for passing through driver element 18 in the end of the side of power enhancing bar 78
Driving force, be pressed via knuckle joint 74, thus power enhancing bar 78 rotated around supporting pin 86.In other words, drive
The linear displacement of unit 18 is converted into power strengthens the swing offset of bar 78.
The end of link arm 38 is by configuring the first attachment pegs 36 on the first and second clamp arms 14,16 by pivotally
Support, and its other end is pivotally supported by the 3rd attachment pegs 84 being supported on power enhancing bar 78.More specifically, connection
Arm 38 is connect to be connected power enhancing bar 78 with the end of the first and second clamp arms 14,16, and relative to the first and second folders
Tight arm 14,16 and power enhancing bar 78 are rotatably configured.Therefore, the driving force for being transferred to power enhancing bar 78 is transferred to
First and second clamp arms 14,16 are influenceing it to rotate.
Apparatus for fastening 10 is constructed substantially as described above according to an embodiment of the invention.Next, being described below
Described in apparatus for fastening 10 operation and advantage.In the following description, the non-clamping state shown in Fig. 3 is referred to as initial position,
The clamping section 34 of wherein the first and second clamp arms 14,16 is disconnected from each other.
In initial position, pressure fluid is supplied through the first port 56 between first piston 44 and second piston 46,
So as to first piston 44 and second piston 46 are respectively facing the second rod set 54 of the first rod set 52 (in the direction of arrow C) and direction
(in the direction of arrow D), is moved in side away from each other upwardly through pressure fluid, and as shown in Figure 4 C, power enhancing
Second attachment pegs 76 of bar 78 are presented the state being positioned at downwards in connection groove 82.
Carry out the description on the workpiece W clamped by above-mentioned apparatus for fastening 10 now.For example, as shown in figs. 1 and 3, work
Part W is made up of the first framework W1 and the second framework W2, and first framework W1 has U-shaped section, and second framework has U-shaped section
And it is assembled together so as to constitute vehicle frame with the first framework W1.
First framework W1 is placed between the clamping section 34 of the first and second clamp arms 14,16, and its opening down finger
To (in the direction of arrowb), and the second framework W2 is installed on top plate portion 26 and its opening up sensing is (in arrow A
Direction on), and its sidewall slope gradually widens so as to the distance between side wall towards open side, and the first framework W1 quilts
Insert the inside of the second framework W2.
In other words, the second framework W2 is arranged in the outside of the first framework W1, and the second framework W2 sidewall slope, from
And broadened towards the first and second clamp arms 14,16.
In the state of the precalculated position that workpiece W is arranged on apparatus for fastening 10, first, in unaccounted switching device
Under handover operation, the pressure fluid of first port 56 is fed to by while being fed to second and the 3rd port 58,60.Now, press
The supply of power fluid is performed, and be fed to second and the 3rd the amount of pressure fluid of port 58,60 be identical.
Therefore, as shown in figure 1, pressure fluid by being introduced into cylinder barrel 42, the first and second pistons 44,46 are being leaned on each other
It is extruded near direction, and the first and second piston rods 48,50 and the piston 44,46 1 of knuckle joint 74 and first and second
Rise and integratedly moved.
In addition, by knuckle joint 74 towards the displacement of cylinder barrel 42, as shown in Figure 4 B, inserting the second of connection groove 82
By movement (in the direction of arrow) upwards, and therefore, the end of power enhancing bar 78 is respectively facing cylinder barrel 42 to pin 76
Draw.Further, rotation of the bar 78 around supporting pin 86 is strengthened by power, link arm 38 is by respectively away from driver element 18
Upwardly, the link arm 38 is connected to power strengthens the other end of bar 78 for side.
Therefore, the end of the first and second clamp arms 14,16 each other away from side upwardly through the quilt of link arm 38
Extruding, so as to the clamping section 34 of the other end of the first and second clamp arms 14,16 start side close to each other upwards about
Arm pin 30 to rotate.
Further, as Figures 1 and 4 shown in A, driver element 18 is fed to by by pressure fluid, knuckle joint 74 is by court
Pulled via the first and second piston rod 48,50 to cylinder barrel 42.Further, power enhancing bar 78 by the second attachment pegs 76 along
The movement further up of connection groove 82 is rotated, and strengthens bar 78 and link arm 38, the first and second folders via power
The lower end of tight arm 14,16 is extruded on direction away from each other.
As a result, the clamping section 34 of the first and second clamp arms 14,16 is mutually rotatable on direction close to each other, and the
The side wall of two framework W2 is extruded and is deformed by clamping section 34 so that close to each other so that the side wall of the second framework W2 against
The side wall of the first framework W1, and the side wall of first and second framework W1, W2 is substantially parallel to each other.Therefore, clamping quilt is reached
The clamp position (see Fig. 1) of completion.
Now, location division 40 engages with the pockets 28 of main body 12 respectively, so as to during clamping, first and second press from both sides
Tight arm 14,16 is positioned at predetermined stop position, and the first and second further rotating for clamp arm 14,16 are prohibited.
In addition, in the state of first and second framework W1, W2 are clamped by the first and second clamp arm 14,16, first
It is soldered to for example, by unaccounted welding equipment with the side wall of second framework W1, W2 and is gone up each other.
Further, each power enhancing bar 78 is formed to be connected to one end of knuckle joint 74 towards it from supporting pin 86
Length (the 3rd apart from L3) ratio of side is from supporting pin 86 towards the length the (the 4th of its another side for being connected to the 3rd attachment pegs 84
Apart from L4) it is longer.Thus, when workpiece W is clamped by the first and second clamp arm 14,16, the driving force of driver element 18 is led to
Cross the 3rd is strengthened apart from length ratio (L3/L4) of L4 apart from L3 and the 4th by power, and the driving force for increasing is transferred to
Link arm 38.
Further, each in the first and second clamp arms 14,16 is formed from arm pin 30 towards one side
Length (second distance L2) is longer than the length (first apart from L1) from arm pin 30 towards its another side.Therefore, from link arm
38 be transferred to the driving forces of the first and second clamp arms 14,16 by first apart from L1 and second distance L2 length ratio (L2/
L1) and by power strengthen such that it is able to using the chucking power clamping workpiece W of increase.
More specifically, being clamped because strengthening bar 78 and first and second by power from the driving force of the output of driver element 18
Arm 14,16 strengthens, so that workpiece W can be clamped, it need not set large-scale driver element 18 to obtain predetermined chucking power,
And substantially the same chucking power can be obtained by small drive units 18.
Further, bar 78 and connection are strengthened via the rotary power of knuckle joint 74 by under the driving effect of driver element 18
Arm 38 is connect, the first and second clamp arms 14,16 can be rotated with virtually constant power.Therefore, clamped from first and second
The rotation of arm 14,16 starts until its rotation process is completed, and the second framework W2 is extruded towards the first framework W1 and workpiece W begins
Clamped by constant chucking power eventually.
On the other hand, if workpiece W will be released from by the state that the first and second clamp arm 14,16 is clamped, undeclared
Switching device handover operation under, while be fed to second and the 3rd the pressure fluid of port 58,60 be fed to again
First port 56.Thus, under the squeezing action of pressure fluid, the first and second pistons 44,46 are on direction away from each other
Shift, therefore the first and second piston rods 48,50 and knuckle joint 74 are integratedly shifted with it.
In addition, leaving the movement of cylinder barrel 42 by knuckle joint 74, the second attachment pegs 76 decline along connection groove 82, and
And therefore the other end of power enhancing bar 78 is pulled to be close to driver element 18 around supporting pin 86.Therefore, first and second
The clamping section 34 of clamp arm 14,16 is rotated on direction away from each other via arm pin 30, so as to as shown in figure 3, cause non-
Clamp position, the clamping of workpiece W is released under the non-clamping state.
In aforesaid way, according to the present embodiment, it is being equipped with a pair driving lists of the first and second pistons 44,46
In the apparatus for fastening 10 of unit 18, driving force strengthens bar 78 via knuckle joint 74, power and link arm 38 is transferred to the first and
Second clamp arm 14,16, the driving force is exported according to the displacement of the first and second pistons 44,46.Strengthen bar 78 in each power
In, the length (the 3rd apart from L3) relative to the side that supporting pin 86 is connected to knuckle joint 74 is set as than relative to branch
The length (the 4th apart from L4) of the another side that support pin 86 is connected to link arm 38 is longer.Therefore, when workpiece W is clamped,
Driving force is strengthened by length ratio (L3/L4) by power, so that the driving force for so increasing can be transferred to link arm 38.
Further, in each first and second clamp arm 14,16, from arm pin 30 to the side for being connected to link arm 38
Length (second distance L2) it is longer than the length (first apart from L1) of the clamping section 34 from arm pin 30 to another side.Cause
This, driving force can be enhanced by length ratio (L2/L1), and influence the rotation of the first and second clamp arms 14,16 so as to
Clamping workpiece W.
Therefore, although driver element 18 output driving force it is small because workpiece W can by strengthen driving force and to expect
Chucking power is clamped, even if in the case where very big chucking power is for example needed, producing the driver element 18 of small power output
Can be used, and apparatus for fastening 10 can be made size smaller.
Further, be supplied pressure fluid second and the 3rd port 58,60 be respectively set at composition driver element
On one end and the other end of 18 cylinder barrel 42, and second and the 3rd port 58,60, the first He are fed to by by pressure fluid
Second piston 44,46 is in square upward displacement close to each other, so that the first and second clamp arms 14,16 can be rotated to reach
Clamp position.Thus, for example, using flow speed control valve etc., the supply of the pressure fluid by making to be fed to second port 58 is different
In the supply of the pressure fluid for being fed to the 3rd port 60, the rotating speed energy of the rotating speed of the first clamp arm 14 and the second clamp arm 16
Enough it is changed.
If for example, the amount of pressure fluid for being fed to second port 58 is big, and being fed to the pressure fluid of the 3rd port 60
Amount is small, then the rotating speed of the first clamp arm 14 can be accelerated, and the rotating speed of the second clamp arm 16 can postpone or the first clamp arm 14 of ratio
Rotating speed it is slow.Thus, only the clamping section 34 of the first clamp arm 14 first against workpiece W to position workpiece W, thereafter, second clamp
The clamping section 34 of arm 16 is then clamped between the first and second clamp arms 14,16 against workpiece W with by workpiece W.Thus, in folder
In clamping apparatus 10, workpiece W can be reliably clamped between precalculated position without independently performing the positioning action of workpiece W,
Therefore, the efficiency of clipping operation can be improved.
On the other hand, the driving force transmission mechanism 20 of above-mentioned apparatus for fastening 10 is not limited to the example shown in Fig. 4 A to 4C,
Wherein, knuckle joint 74 is connected to the other end of First piston bar 48 (and second piston bar 50), and power enhancing bar 78
Rotatably configured via the second attachment pegs 76 in the connection groove 82 of knuckle joint 74.For example, shown in Fig. 5 A to 5C
Driving force transmission mechanism 100 in, connecting pin 102 can be inserted into via groove 106, and the connecting pin 102 is connected to the first work
The other end of stopper rod 48 (and second piston bar 50), the groove 106 is formed in power strengthens a side of bar (transmission pole) 104
On, so that power enhancing bar 104 is rotatably connected to First piston bar 48 (and second piston bar 50).
In Fig. 5 A to 5C, display is attached to a connecting pin 102 of First piston bar 48, and a quilt of connecting pin 102
It is connected to its power enhancing bar 104.However, another connecting pin 102 of same shape is also attached to second piston
Bar 50, and set another connecting pin 102 be connected to its another power enhancing bar 104, another power enhancing
Bar 104 be arranged in in First piston bar 48 a power enhancing bar 104 it is symmetrical.
Connecting pin 102 is included：Connector (junction surface) 108, piston rod 48,50 is connected to the connector 108；Narrow axle portion
(axle portion) 110, the diameter of the narrow axle portion 110 is reduced compared with the diameter of connector 108；With Knobs (junction surface)
112, the Knobs 112 are configured in the end of narrow axle portion 110.In addition, narrow axle portion 110 is inserted through power enhancing bar 104
Groove 106, the narrow axle portion 110 has predetermined length, and connector 108 in the axial direction (on the direction of arrow C and D)
With the outside that protuberance 112 is installed to groove 106.Further, groove 106 extends with one end of power enhancing bar 104
Mode open, and connector 108 be formed with it is substantially the same with two the first and second piston rods 48,50 straight
Footpath.
More specifically, connecting pin 102 is maintained at its narrow axle portion 110 by connector 108 and protuberance 112 inserts groove
In 106 state, the connector 108 and protuberance 112 are formed as having a diameter larger than the width of groove 106.
Additionally, connecting pin 102 is not limited to be connected to the example of the first and second piston rods 48,50, and can be and
One and the other end of second piston bar 48,50 be integrally formed.
In addition, as shown in Figure 5A, in workpiece W is by the clamped clamp position of the first and second clamp arm 14,16, the
One piston rod 48 is moved to the side (in the direction of arrow D) of cylinder barrel 42 according to the displacement of first piston 44, so that connecting pin
102 are also shifted towards cylinder barrel 42, and therefore one end of power enhancing bar 104 is pulled and moved to by protuberance 112
The side of driver element 18.
Thus, power enhancing bar 104 another side on the direction (direction of arrow C) away from driver element 18 via
Supporting pin 86 is rotated, therefore, one end of the first clamp arm 14 (and second clamp arm 16) is pressed via link arm 38, and
And first clamp arm 14 (and second clamp arm 16) clamping section 34 near and clamping workpiece W direction on rotated, from
And reach clamp position.
On the other hand, in the case of being released from above-mentioned clamp position to reach non-clamping state, in driver element 18
Drive under operation, First piston bar 48 is moved on away from the direction of cylinder barrel 42, so that as illustrated in figs.5 b and 5 c, power enhancing
One end of bar 104 is pressed by the connector 108 of connecting pin 102, and is rotated by around supporting pin 86, the first clamp arm
14 one end is pulled via link arm 38 towards driver element 18 (in direction of arrow D).Thus, non-clamping state is reached,
Wherein, the clamping section 34 of the first clamp arm 14 is rotated (see Fig. 5 C) on away from the direction of workpiece W.
Further, in the case where state changes to the clamp position of workpiece W again from above-mentioned non-clamping state, driving
Under the driving effect of unit 18, First piston bar 48 is moved to be contained in cylinder barrel 42, so that the protuberance of connecting pin 102
112 pull power enhancing bar 104 against the side of power enhancing bar 104 and towards cylinder barrel 42 (in direction of arrow D).Cause
This, power enhancing bar 104 is rotated around supporting pin 86, and link arm 38 is pushed away on away from the direction of driver element 18
Go out.Therefore, one end of the first clamp arm 14 is moved on the direction for driver element 18 separate, then first clamp arm 14
Clamping section 34 is rotated towards workpiece W, so as in clamp position clamping workpiece W.
More specifically, in the case where the first and second clamp arms 14,16 move to non-clamping state from clamp position, moving
The end of power enhancing bar 104 is pressed by the connector 108 of connecting pin 102, so that power enhancing bar 104 is rotated, conversely
Ground, if the first and second clamp arms 14,16 move to clamp position from non-clamping state, power strengthens the end quilt of bar 104
The protuberance 112 of connecting pin 102 is pulled, so that power enhancing bar 104 rotates.
Therefore, by realizing above-mentioned driving force transmission mechanism 100, by the letter of groove 106 for strengthening bar 104 relative to power
The narrow axle portion 110 of connecting pin 102 singly is inserted, driving force transmission mechanism 100 can be easily assembled, the quilt of narrow axle portion 110
It is connected to the other end of the first and second piston rods 48,50.Therefore, the installation step that assembling driving force transmission mechanism 100 needs
Quantity can reduce.
Apparatus for fastening of the invention is not limited to above-described embodiment.In the hair limited without departing substantially from appended claims
In the case of bright scope, embodiment can be made various changes and modifications.
Claims (5)
1. a kind of apparatus for fastening (10), the apparatus for fastening (10) for rotating a pair of clamp arms (14,16), so as to by workpiece clamp
Tightly between the clamp arm (14,16), it is characterised in that the apparatus for fastening (10) includes：
Main body (12)；
Driver element (18), the driver element (18) configuration is in the main body (12) and including can be along axis direction
The displaceable component (44,46,48,50) of displacement；
The pair of clamp arm (14,16), the pair of clamp arm (14,16) is relative to the main body (12) by rotatable twelve Earthly Branches
Support, the clamp arm (14,16) is configured with relation facing with each other；With
Driving force transmission mechanism (20,100), the driving force transmission mechanism (20,100) includes transmission pole (78,104), described
Transmission pole (78,104) for connecting the end of the displaceable component (48,50) and the end of the clamp arm (14,16), and
And institute will be transferred to along the driving force of the axis direction of the driver element (18) via the transmission pole (78,104)
Clamp arm (14,16) is stated, so as to rotate the clamp arm (14,16)；
Wherein, the transmission pole (78,104) is rotatably supported relative to the main body (12), each described transmission pole
The one end of (78,104) is connected in the displaceable component (48,50), and its other end is connected to the clamping
One in arm (14,16), and the transmission pole (78,104) exists relative to the Support Position that the main body (12) is supported
It is located between described one end and the other end on longitudinal direction, so that from the Support Position to described one end in the longitudinal direction
Distance on direction is longer than the distance from the Support Position to the other end in the longitudinal direction.
2. apparatus for fastening as claimed in claim 1, it is characterised in that each clamp arm (14,16) is by support shaft (30) phase
Rotatably configured for the main body (12), and from connecting one end to the support shaft (30) of the transmission pole (78)
Distance it is longer than distance from clamping section (34) to the support shaft (30) for clamping the workpiece.
3. apparatus for fastening as claimed in claim 1 or 2, it is characterised in that the driver element (18) includes：With first end
The fluid pressure cylinder of mouthful (56) and second port (58,60), pressure fluid is supplied to the first port (56) and described the
Two-port netwerk (58,60)；With cylinder main body (42), the displaceable component (44,46,48,50) is displaceably configured at the cylinder
In main body (42), the displaceable component (44,46) comprising a pair of pistons, wherein, by via the first port (56) supply
Answer pressure fluid, the piston in square upward displacement away from each other to each other, and by via the second port (58,60)
Supply pressure fluid, the piston is in square upward displacement close to each other.
4. apparatus for fastening as claimed in claim 1, it is characterised in that the driving force transmission mechanism (20) includes：Engagement structure
Part (74), the engagement member (74) is connected to the end of the displaceable component (48,50), and each described engagement member
(74) with connection groove (82), the connection groove (82) is vertical with the direction of displacement of the displaceable component (44,46)
Side upwardly extend；Pin (76), pin (76) configuration is in the end of the transmission pole (78) and is displaceably inserted through
The connection groove (82).
5. apparatus for fastening as claimed in claim 1, it is characterised in that the driving force transmission mechanism (100) is including axle portion
(110), each described axle portion (110) configuration is on the end of the displaceable component (48,50), and is inserted through recessed
Groove (106), the groove (106) is formed in the end of the transmission pole (104), and junction surface (108,112) are formed in often
The two ends of the individual axle portion (110), the diameter of the junction surface (108,112) expands relative to the axle portion (110).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-013560 | 2013-01-28 | ||
| JP2013013560A JP5821134B2 (en) | 2013-01-28 | 2013-01-28 | Clamping device |
| PCT/JP2013/083810 WO2014115445A1 (en) | 2013-01-28 | 2013-12-11 | Clamp apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104955617A CN104955617A (en) | 2015-09-30 |
| CN104955617B true CN104955617B (en) | 2017-07-11 |
Family
ID=49918785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380071484.2A Expired - Fee Related CN104955617B (en) | 2013-01-28 | 2013-12-11 | Apparatus for fastening |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10543584B2 (en) |
| JP (1) | JP5821134B2 (en) |
| CN (1) | CN104955617B (en) |
| BR (1) | BR112015017930A2 (en) |
| DE (1) | DE112013006237B4 (en) |
| MX (1) | MX368058B (en) |
| WO (1) | WO2014115445A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108115332A (en) * | 2016-11-30 | 2018-06-05 | 上海Abb工程有限公司 | Positioning and clamping mechanism |
| CN107199474A (en) * | 2017-07-14 | 2017-09-26 | 安徽越天特种车桥有限公司 | The rotatably adjustable processing unit (plant) of axletree |
| CN112548828A (en) * | 2020-12-10 | 2021-03-26 | 芜湖恩之伟汽车零部件有限公司 | Automobile wheel hub burnishing device |
| CN113910127B (en) * | 2021-10-08 | 2023-01-24 | 广西电网有限责任公司南宁供电局 | Electric automatization fixture |
| CN114918697B (en) * | 2022-06-10 | 2024-03-22 | 青岛东部机械有限公司 | Regulator tool for automobile brake |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1771712A (en) * | 1928-06-08 | 1930-07-29 | Ingersoll Rand Co | Spike extractor |
| US2341602A (en) * | 1941-06-21 | 1944-02-15 | Ohio Seamless Tube Company | Billet centering apparatus |
| US3743345A (en) * | 1971-12-10 | 1973-07-03 | J Eckman | Multi-use camper |
| DE3031778C2 (en) * | 1980-08-21 | 1982-08-05 | Mannesmann AG, 4000 Düsseldorf | Power operated clamping device |
| US4362261A (en) * | 1980-09-17 | 1982-12-07 | Litton Industrial Products, Inc. | Clamp assembly for a friction welding machine |
| JPS57201174A (en) * | 1981-06-02 | 1982-12-09 | Shigeo Nishimura | Air both clamping center vice |
| JP3749315B2 (en) | 1996-09-06 | 2006-02-22 | Ｓｍｃ株式会社 | Chuck device |
| JP2000176764A (en) * | 1998-12-11 | 2000-06-27 | Toyota Motor Corp | Clamping device |
| JP2001001274A (en) * | 1999-06-17 | 2001-01-09 | Smc Corp | Clamp device |
| US7066458B2 (en) | 2002-08-13 | 2006-06-27 | Phd, Inc. | Powered clamp assembly |
| US7854456B2 (en) * | 2006-04-13 | 2010-12-21 | Syron Engineering and Manufacturing, LLC | Dual rod gripper |
| US7837247B2 (en) * | 2006-07-18 | 2010-11-23 | Syron Engineering & Manufacturing, Llc | Gripper with central support |
| CN200967182Y (en) * | 2006-11-24 | 2007-10-31 | 中国南车集团铜陵车辆厂 | Clamp |
| ATE483550T1 (en) * | 2007-11-08 | 2010-10-15 | Schunk Gmbh & Co Kg | BEZEL |
| JP4950123B2 (en) | 2008-05-21 | 2012-06-13 | シーケーディ株式会社 | Clamping device |
| CN201415334Y (en) * | 2009-06-23 | 2010-03-03 | 齐齐哈尔二机床(集团)有限责任公司 | Special fixture of keyway fraise machine workpieces |
-
2013
- 2013-01-28 JP JP2013013560A patent/JP5821134B2/en active Active
- 2013-12-11 BR BR112015017930A patent/BR112015017930A2/en active Search and Examination
- 2013-12-11 WO PCT/JP2013/083810 patent/WO2014115445A1/en active Application Filing
- 2013-12-11 MX MX2015009671A patent/MX368058B/en active IP Right Grant
- 2013-12-11 CN CN201380071484.2A patent/CN104955617B/en not_active Expired - Fee Related
- 2013-12-11 US US14/759,307 patent/US10543584B2/en not_active Expired - Fee Related
- 2013-12-11 DE DE112013006237.2T patent/DE112013006237B4/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015017930A2 (en) | 2017-07-11 |
| US20150352692A1 (en) | 2015-12-10 |
| US10543584B2 (en) | 2020-01-28 |
| CN104955617A (en) | 2015-09-30 |
| WO2014115445A1 (en) | 2014-07-31 |
| MX368058B (en) | 2019-09-18 |
| DE112013006237B4 (en) | 2020-02-06 |
| JP5821134B2 (en) | 2015-11-24 |
| MX2015009671A (en) | 2015-11-25 |
| DE112013006237T5 (en) | 2015-10-01 |
| JP2014144498A (en) | 2014-08-14 |
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20170711 Termination date: 20211211 |